Is Teeth Whitening Safe? | Colgate (2024)

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Nothing instills confidence like a million-dollar smile. When your pearly whites shine, you're ready to brighten any room. Yet, everything from your morning coffee to your evening glass of wine threatens to stain your beloved teeth. As you begin to research yourteeth whitening options, you may wonder: Is whitening your teeth bad?

Are Teeth Whitening Methods Safe?

Teeth whitening methods have been evaluated for decades and are used by millions of people. The American Dental Association (ADA) states that safe and effective teeth whitening options are available for both in-office and at-home applications and over-the-counter (OTC) treatments.

Can Teeth Whitening Hurt Your Teeth?

However, several minor side effects are sometimes associated with teeth whitening. These include gum irritation, tooth sensitivity, and impact on dental restorations.

Gum Irritation

Hydrogen peroxide and carbamide peroxide are the most common active ingredients for teeth whitening products. Treatments prescribed by your dentist — whether that's an in-office procedure or take-home whitening trays — contain higher levels of these bleaching agents. If the bleach were to touch your gums, it could cause irritation. However, your dentist takes extra precautions to protect your gum tissue. During in-office procedures, a protective gel will be used to shield your gums from the bleaching agent. Similarly, at-home trays are customized to fit your teeth, so as little whitening gel touches your gums as possible. If you still experience any issues, the irritation should heal on its own.

Tooth Sensitivity

Tooth sensitivity is another common side effect of all forms of teeth bleaching. According to the ADA, sensitivity is possibly due to the inflammation of the pulp from peroxide exposure during the treatment. Many factors may influence the severity of the sensitivity, including the peroxide concentration, the presence of restorations, or even the intensity of light used. The sensitivity may resolve on its own, but if not, you can try:

  • Brushing with toothpaste made for sensitive teeth.

  • Wearing the strips or trays for a shorter time.

  • Asking your dentist for a fluoride product to help remineralize teeth.

  • Pausing the whitening process for several days to allow teeth to adapt.

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Effects on Dental Restorations

Some researchsuggests that whitening treatments may have adverse effects on dental restorations. However, these effects depend on the type of material used. The peroxide may accelerate the amount of mercury leached from dental amalgam, depending on the concentration of peroxide used, time of application, and age of the dental amalgam. However, the concentration of mercury leached is still below a level associated with possible health concerns. Plus, other materials — like the ones used for crowns and implants — show the best resistance to peroxide. If you're concerned about the effects of whitening treatments on your dental restorations, talk to your dentist about the best option.

How to Safely Whiten Teeth

If you are interested in taking the next steps toward a whiter smile, follow these steps to safely use teeth whitening products.

Step 1: Talk to your dentist

Your dentist can evaluate your tooth health and address any issues — like cavities or gum disease — before you start a whitening protocol. They also can advise on the best whitening treatment and answer any of your questions.

Step 2: Follow teeth whitening product instructions

Each product comes with a unique set of instructions for the duration and frequency of use. Overuse or incorrect use of the product may put you at higher risk for side effects like gum irritation or tooth sensitivity.

What is the Safest Teeth Whitening Method?

All common teeth whitening methods are generally considered to be safe when they are done in line with the manufacturer or dentist’s instructions. However, they may not be suitable for children, pregnant women, or those with certain health conditions. If you have any questions about the safety of a tooth whitening method, it’s best to check with your dental professional before you try it.

The risk of side effects is highest when using a product with a stronger concentration of bleaching agent, like those provided by your dentist in-office. However, your dentist has a number of ways to minimize these risks and manage any side effects that arise. Whitening toothpastes and mouthwashes present the lowest risk of side effects, as the concentrations of bleaching agents are very low. With any whitening product, the risk of side effects also increases if you use more of the product than instructed, or leave it for longer than instructed.

Is teeth whitening safe? Yes, it can be. Simply handle your whitening protocol like any medical treatment — listen to your dentist, follow instructions, and watch for unwanted side effects. Then, you can safely and effectively whiten your teeth and brighten your smile.

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TEETH WHITENING

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FAQs

How safe is teeth whitening? ›

As long as you stick to dentist-approved methods, whitening your teeth is considered safe. Make sure to use the method that fits your needs and always follow the directions for the product. Contact your dentist if you experience any side effects.

Is there anything bad about teeth whitening? ›

What are the risks of teeth whitening? No matter what treatment you use, there's a chance your gums will be sensitive to the chemicals used in teeth whitening, particularly if you already have sensitive teeth. There's also a chance of burns to gums and some of the whitening kits used at home can harm tooth enamel.

Do dentists recommend tooth whitening? ›

Lots of people can have teeth whitening treatment, but some people may not be suitable if they have gum disease or other dental health problems such as tooth decay. You'll need to have consultation with your dentist before having treatment, to assess the suitability of your teeth.

Is it worth getting my teeth whitened? ›

According to some studies, having whiter teeth can make you appear younger, more attractive, more employable and more successful. Just think of the instant boost of confidence that could bring to your day-to-day life.

What is the least damaging way to whiten your teeth? ›

Baking Soda: As long as you are careful to brush gently, baking soda can eliminate stains from the surface of your teeth without damaging them. Whitening Strips: Whitening strips mold to the shape of your teeth to whiten them. Whitening strips are both safe and effective.

Can yellow teeth become white again? ›

Yellow teeth can regain whiteness through various methods, including good oral hygiene, professional dental cleanings, and teeth-whitening treatments. Stains from coffee, tea, or tobacco can be removed with adequate oral care, while professional procedures like bleaching or laser treatments offer quicker results.

Why is teeth whitening not recommended? ›

One of the most common side effects is tooth sensitivity, which can occur during or after treatment. Overuse or misuse of teeth whitening products can also lead to enamel damage, gum irritation, and discoloration. Additionally, some types of tooth discoloration may not respond well to teeth whitening treatments.

Who should not get their teeth whitened? ›

Teeth whitening treatments work best on healthy teeth and gums. If you have underlying dental issues like tooth decay, gum disease, or enamel erosion, it can affect the effectiveness and safety of whitening treatments. These conditions may require treatment before considering teeth whitening.

Can teeth look worse after whitening? ›

First of all, don't worry! The white, patchy, streaky, or lined look of teeth after whitening is normal – it's called enamel demineralization.

How do celebrities get their teeth so white? ›

If you see celebrities with perfectly white, straight, and uniform-looking teeth, they likely have veneers. Unlike teeth whitening, veneers are more permanent. There are various types of materials used, but porcelain and composite are the most common types.

Who is not a good candidate for teeth whitening? ›

If you have a lot of fillings, dental bonding or crowns, you may not be a candidate for dental whitening. This is because restorations will not respond to whitening, and a whitening treatment could result in a very uneven appearance.

How to get whiter teeth naturally? ›

Seven Ways to Naturally Whiten Teeth
  1. Eat Strawberries. One of the simplest ways to naturally whiten your teeth is just by eating strawberries. ...
  2. Eat Plenty of Fruits and Vegetables. ...
  3. Brush After You Eat or Drink. ...
  4. Rinse with Apple Cider Vinegar. ...
  5. Apply Coconut Oil. ...
  6. Brush Your Tongue. ...
  7. Use Baking Soda and Hydrogen Peroxide.

What is the success rate of teeth whitening? ›

Generally, whitening is successful in at least 90 percent of patients, though it may not be an option for everyone. Consider tooth whitening if your teeth are darkened from age, coffee, tea or smoking.

How long does teeth whitening last? ›

The most effective way to whiten your teeth is professional teeth whitening treatment applied by your dentist in the office. The results of this type of treatment can last between 1 and 3 years. In-office teeth whitening involves the following process: The gum tissue is protected from the effects of the bleaching gel.

Is hydrogen peroxide safe for teeth? ›

Choose the right concentration: A low concentration of Hydrogen Peroxide (around 3% to 6%) is safe to use for teeth whitening usually without any side effects. Hydrogen Peroxide can produce certain side effects like gum or tooth sensitivity if used often in high concentration.

Who shouldn't get teeth whitening on? ›

Pregnant and lactating women. People who have restorations such as fillings, implants, crowns and dental bridges. Children under 16 years of age. Patients with periodontal disease, tooth decay, cavities and exposed roots.

Will teeth whitening hurt my teeth? ›

Although the procedure is considered safe and non-invasive, there are still some risks involved. It is not recommended to people with sensitive enamel, because the teeth whitening process uses chemicals. These chemicals aren't very friendly to dental enamel and can cause problems for people with worn down enamel.

Does teeth whitening cause any dental problems? ›

The most common teeth whitening side effect is tooth sensitivity. This often subsides within a few days to a week after treatment. Other potential side effects include gum irritation, redness, and soreness in the mouth. These side effects are also typically temporary and will resolve on their own.

When should you not get teeth whitening? ›

You may not be a candidate for teeth whitening. If you are allergic to peroxide, you will not be able to have your teeth whitened, since peroxide is the active ingredient in whitening systems. If you have a lot of fillings, dental bonding or crowns, you may not be a candidate for dental whitening.

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